Padmounted Switchgear
Electrical Apparatus
Types PWE, PWVE Three-Phase Reclosers
285-71
GENERAL
Kyle® Types PWE and PWVE padmounted, electronically controlled,
three-phase automatic circuit
reclosers (Figures 1 and 2) provide
reliable and economical over-current
protection for distribution systems
utilizing UD cable. They feature vacuum interruption for long life and
minimum maintenance. Using oil as
the insulating medium contributes to
the compactness of the weatherproof and tamper-resistant padmount enclosure.
Types PWE and PWVE reclosers
are designed for 15- and 27-kV system applications such as feeder protection, sectionalizing, and transformer highside protection.
Controlled by Kyle’s Form 3A or
Form 4C Type ME electronic control,
they offer coordination and application capability that is unmatched by
other system protection apparatus.
Recloser operations are programmed on the electronic control
panel with accurate, preset tripping
characteristics and reclosing times.
Operating programs are precise and
unvaried, enabling closer coordination with other protective devices on
the system. When system requirements change, program settings are
easily altered without sacrificing
accuracy or consistency. Recloser
and control accessories enable further tailoring of the protective program to achieve maximum system
operating flexibility.
Type PWE and PWVE padmounted reclosers feature weatherproof
and tamper-resistant enclosures,
providing an attractive, compact, and
secure package for use in substations, commercial and residential
areas, and other applications where
low-profile construction is required.
Wide double doors offer easy access
to conveniently located operating
levers on the face of the recloser
tank.
Kyle reclosers in a distribution
system protection scheme offer significant user advantages. Their
broad application capabilities permit
the user to select exactly the right
recloser for the protection required.
When needed, Kyle’s application
expertise—backed by worldwide re-
Figure 1.
Kyle PWE and PWVE electronically controlled, padmounted, automatic
circuit reclosers feature three-phase vacuum interruption in weatherproof and tamper-resistant enclosures.
Figure 2.
Low-profile housing with wide double doors provides easy access to all
operating controls on PWE and PWVE 15- and 27-kV automatic circuit
reclosers.
closer application experience—is
readily available. Knowledgeable
design capability—based on 45
years of recloser manufacturing
experience—provides the operating
features required for effective overcurrent protection of complex distribution systems. Progressive development programs using the latest
January 1990 • Supersedes 6/83 • © 1990 Cooper Power Systems, Inc.
Printed in U.S.A. SL
technologies have resulted in the
modern, efficient Kyle reclosers,
which are designed and built in
accordance with ANSI Standard
C37.60. Kyle PWE and PWVE
reclosers also meet the anti-tampering requirements of the Western
Underground Specification 2.13.
1
Types PWE and PWVE Three-Phase Reclosers
BASIC RATINGS
PWE reclosers protect three-phase
system rated 2.4 through 14.4 kV;
PWVE reclosers can be applied to
systems rated through 24.9 kV. Basic
voltage and current ratings for these
reclosers are summarized in Table 1.
For ratings and basic application
information on other Kyle reclosers,
see Catalog 280-05.
TABLE 1
Basic Ratings
Recloser
Type
Nominal
Voltage
(kV)
Maximum
Continuous
Current
(amps)
Maximum Interrupting
Rating at Nominal
Voltage
(sym amps)
PWE
PWVE
14.4
24.9
560
560
12000
12000
BASIC CHARACTERISTICS
PWE and PWVE reclosers are electronically controlled protective devices
in which tripping and closing are initiated by signals from the control. The
signals produced by the control energize the operating circuits in the
recloser and release the stored-energy trip mechanism when an overcurrent occurs.
Sensing current transformers mounted in the recloser supply faultsensing
information to the electronic control.
Since there is a single CT ratio for all
ratings, minimum-trip values of the
electronic control are independent of
the continuous-current and interrupting
ratings of the recloser. Flexibility in
coordination with other protective
devices is provided by dual time-current characteristics from a choice of
available curves, minimum trip values,
reclosing and resetting time settings,
and a selection of accessories.
ORDERING INFORMATlON
To order a basic Type PWE recloser:
1. Use the chart and Table 2 to construct a catalog number that
describes the required basic
recloser.
2. From Tables 3 through 7, specify
the catalog numbers that describe
the required accessories.
3. Order the required electronic
recloser control (Control is priced
separately from recloser).
A) From 280-01, Part 75, specify
the required Form 3A Type ME
electronic control, programming
plugin components, dial settings and accessories.
—OR—
B) From 280-01, Part 77, specify
the required Form 4C Type ME
microprocessor-based recloser
control, input voltage and
accessories.
CLOSING SOLENOlD
Contact-closing energy is provided by
a closing solenoid which also stores
energy in the trip mechanism. High
voltage closing solenoids are connected to the system on the source side of
the recloser; selection of solenoid voltage rating is based on the system
phase-to-phase operating voltage.
Low-voltage closing solenoids can be
employed; auxiliary voltage must then
be supplied to the recloser.
VACUUM INTERRUPTlON
PWE and PWVE reclosers use vacuum as the arc-interrupting medium.
Vacuum interruption provides long
contact life and considerably longer
duty cycles than oil interruption. A single break on each phase is accomplished by separating contacts inside
the vacuum interrupter. All arcing is
contained within the vacuum envelope. Low-energy arc interruption in a
vacuum results in far less shock and
demonstration than interruption in oil,
thus extending the vacuum recloser
mechanism life. Because interruption
within the vacuum envelope does not
add contaminants to the insulating oil,
recloser maintenance is minimized
and oil life is extended.
2
TABLE 2
Closing Coil Voltage Code Numbers
Phase-to-Phase Closing Coil
Operating Voltage ±15 %
(kV)
Code
No.
2.4
3.3
4.16—4.8
6.0
7.2 — 8.32
11.0
12.0-13.2
14.4
17.0
20.0
23.0 — 24.9
1
10
2
6
3
9
4
5
12*
11*
13*
Low-Voltage Closing Coils
(Vdc)
125
250
7**
8**
* For KPWVE only.
** Requires either low-voltage dc closing accessory
(KA61PWH) or ac operation of low-voltage dc coil
accessory (KA60PWH) to operate. Order separately.
285-71
Example:
To order a basic Type PWE recloser for service on a 14.4-kV system, the
catalog number would be constructed like this:
KPWE Basic letters for Type PWE recloser.
Basic letters for Type PWVE recloser: KPWVE
5 Closing coil code number selected from Table 2 for the system on
which the recloser is to be used.
KPWE 5
KPWE5 is the catalog number for the required basic recloser.
ACCESSORIES
TABLE 3
Control Cable
Description
Standard 14-ft control cable for single-size control cabinet mounted
inside enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard 12-ft control cable for double-size control cabinet mounted
inside enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Longer cable for remotely mounted single- or double-size control cabinet.
Price per ft over standard length
Up to 80 ft cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
81 to 125 ft cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Catalog
No.
KA1ME14
KA106PWE
KA1MEXX*
KA18MEXX*
*Substitute feet for XX in catalog number. Price for longer cable is price per foot x feet in excess of standard length.
TABLE 4
Multi-Ratio Bushing-Current Sensing Transformers Factory-Installed On Load-Side
Bushings 2, 4, and 6*
Description
Three 600:5 BCTs with NEMA five-tap connections . . . . . . . . . . . . . . . . . . . . .
Three 1200:5 BCTs with NEMA five-tap connections . . . . . . . . . . . . . . . . . . . .
Catalog
No.
KA56PWHA
KA56PWHB
*Requires KA130PWH acessory panels. Order separately.
3
Types PWE and PWVE Three-Phase Reclosers
TABLE 5
Remote Operation and Indication
Description
Three stage auxiliary switch (six independent contacts)* . . . . . . . . . . . .
Low-voltage dc closing**
125Vdc
Type PWE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Type PWVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
250 Vdc
Type PWE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Type PWVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ac operation of low-voltage dc closing solenoid**
120 Vac
Type PWE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Type PWVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
240 Vac
Type PWE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Type PWVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Closing-coil transfer switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Catalog
No.
KA54PWH
KA61PWHE
KA61PWHG
KA61PWHF
KA61PWHH
KA60PWHE
KA60PWHG
KA60PWHF
KA60PWHH
KA63PWHB
Requires KA130PWH accessory panel; order separately. Supplied with an equal number of a and b contacts unless otherwise
specified.
** Requires both KA130PWH accessory panel and KA128PWH wiring-and-receptacle assembly; order each separately. Recloser
must be ordered with Code 7 (125-Vdc) or Code 8 (250-Vdc) closing coil; see Constructing a Catalog Number.
*
TABLE 6
Bushings
Description
200-amp universal bushing wells for loadbreak or non-loadbreak
connector inserts
Load side only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load side and source side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Catalog
No.
KA55PWHB
KA55PWHC
TABLE 7
Miscellaneous
Description
Accessory panel (for accessory mounting)* . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory wiring and receptacle assembly* . . . . . . . . . . . . . . . . . . . . . . . . . . . .
52-in.-deep enclosure (cable terminations compartment 10 in. shallower
than standard unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CT Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
*Only one required per recloser regardless of number of accessories installed.
4
Catalog
No.
KA130PWH
KA128PWH
KA65PWH
KA52PWE
285-71
Features and Detailed Description
Figure 3.
View of untanked PWE recloser shown from closing contactor side. Construction of Type PWVE is similar.
BASIC RECLOSER DESIGN
Kyle Types PWE and PWVE padmounted, electronically controlled
reclosers (Figure 3) protect systems
operating through 24.9 kV. (See
Ratings and Specifications Tables 11
and 12). The inherent flexibility of
electronic control enables these
reclosers to meet a wide variety of
application requirements and simplifies coordination with other protective devices in the system.
PWE and PWVE reclosers utilize
vacuum as the arc-interrupting medium. A single break on each phase is
accomplished by separating a set of
contacts within the vacuum chamber.
Low-energy arc interruption in a
vacuum extends the duty cycle and
results in minimal shock and demonstration. Vacuum interruption provides longer recloser mechanism life
and minimizes maintenance
required. Oil is used as the insulating
medium to provide a compact size.
Closing force is supplied by a
closing solenoid, which is energized
by line-to-line connections inside the
recloser. This solenoid closes the
main contacts of all phases while
simultaneously charging the opening
springs in preparation for a tripping
operation.
Fault currents are sensed by three
1000:1 sensing-current transformers
located in the recloser. These CTs
provide a continuous measurement
of line current, monitored by the
electronic control. When minimumtrip current value is exceeded and,
after the programmed time delay, the
control energizes the trip solenoid in
the recloser. This releases the tripping springs, opening the main contacts of all three phases. If reclosing
is programmed, the control then activates the closing mechanism.
The electronic recloser control provides simple determination of phaseand ground-trip sequences and
operations to lockout. Minimum
phaseand ground-trip levels, clearing
timecurrent curves, and reclosing
and resetting times are adjustable at
the control, without de-energizing the
recloser. Application flexibility is
enhanced by dual-timing characteristics from a choice of time-current
curves for phase-and ground-tripping
levels.
5
Types PWE and PWVE Three-Phase Reclosers
Figure 4.
Manual operating handles and indicators for PWE and PWVE reclosers are located on the front of the recloser tank.
CONSTRUCTION
Like all the other Kyle reclosers, the
PWE and PWVE reclosers are
designed for long service life with little maintenance. The recloser tank is
heavy-gage steel, treated with a corrosion-inhibiting epoxy primer, followed by a finish coat of thermo-setting acrylic paint. A square-section
gasket, confined in a groove, assures
an oil-tight seal between the
cover and the tank.
The internal mechanism is suspended from the mechanism frame
assembly so that the mechanism
can be removed from the tank as a
unit. The insulating supports from
which the three interrupters are suspended are filament-wound glass
epoxy for high electrical and
mechanical strength and moisture
resistance.
HOUSING
The recloser mechanism is housed
in a rectangular, oil-filled tank which
forms an integral part of the padmounted housing. The recloser
bushings and operating controls
(Figure 4) are brought out through
the side of the tank into a cable terminations compartment to provide
deadfront construction for operator
safety. An overall roof completes the
housing structure. Lifting lugs provide lifting capability for either the
entire unit or the recloser tank only.
6
Construction is tamper-resistant and
meets the requirements of the
Western Underground Specification
2.13. PWE and PWVE enclosures
(Figures 1 and 2) are provided with
blind-hinged double doors with threepoint latch and pentahead locking
bolt to prevent unauthorized access.
Provisions are also made for a customer-supplied padlock for added
security. The housing is weatherproof
to protect the recloser, connections,
and metering and has a weatherresistant finish (baked acrylic enamel
with epoxy-base primer undercoating; color is guardian green, Munsell
No. 7.0GY3.29/ 1.5).
285-71
CONNECTOR BUSHING
CONSTRUCTION
VACUUM INTERRUPTER
CONSTRUCTION
The Kyle deadfront-type bushings
conform to NEMA Standards
Proposal, publication No. CC-P21971, Separable Insulated
Connectors. They are compatible
with separable deadfront elbow connectors rated for 600-amp, 15- and
27-kV service.
PWE and PWVE reclosers can
also be equipped with universal
bushing wells which are compatible
with all industry-standard plug
inserts for loadbreak- and non-loadbreak-separable UD cable connectors rated for 200-amp, 15- and 27kV service. Both the bushing and the
well are moIded with an integral
flange which provides the clamping
surface. They are clamped to the
recloser tank with a bolted stainlesssteel ring. A gasket groove molded
into the flange confines an O-ring
seal under controlled pressure to
seal the bushing to the tank.
Connector parking-stand brackets
are provided at each bushing.
The recloser can be supplied with
the following bushing arrangements:
600-amp bushings, source and load;
600-amp bushings, source, 200-amp
wells load; or 200-amp wells, source
and load. A grounding bus near the
bottom of the recloser tank provides
for grounding cable terminations and
connectors.
The vacuum interrupter in PWE and
PWVE reclosers (Figure 5) is
produced and tested at the Kyle
Switchgear Plant. This interrupter
owes its high degree of reliability to
the same Kyle vacuum technology
and development programs that are
responsible for the industry’s broadest line of vacuum reclosers.
Major interrupter insulation is
provided by a high-alumina ceramic
cylinder. Ceramic—rather than
glass— is used because ceramic is
far stronger and withstands the higher vacuum bakeout temperature
required for interrupter cleanliness
and long life. The vacuum-melted
alloy end cups and outer envelope
are joined to the ceramic by a butt
seal brazing method of proven
strength and reliability. A monel bellows completes the vacuum enclosure, permitting the moving contact
to travel its 1/2-in. stroke while
maintaining envelope integrity.
The copper-alloy contact material— chosen for its anti-welding and
high current-interrupting capabilities—is processed in specialized
vacuum equipment. Extensive
precautions are taken during
manufacturing—including the use of
clean-room facilities—to assure the
production of reliable vacuum interrupters that are free of contamination
from the atmosphere and handling.
Figure 5.
Cross-section of vacuum
interrupter construction.
7
Types PWE and PWVE Three-Phase Reclosers
RECLOSER OPERATION
Tripping
When current flow exceeds the minimum-trip value needed to actuate
the programmed timing characteristics, the control battery energizes a
trip solenoid in the recloser. This
solenoid releases a latch, and a
spring-loaded toggle assembly
opens the recloser contacts.
Closing
Closing force—as well as the force
to charge the opening springs—is
supplied by a high-voltage closing
solenoid connected phase to phase
(Figure 6). When the recloser contacts are closed, the solenoid
plunger is latched in the down position. The latch is tripped simultaneously with the release of the recloser-opening springs, and the solenoid
plunger moves upward for a closing
operation.
At the programmed reclosing time,
the electronic control energizes a
rotary solenoid in the recloser.
Movement of the rotary solenoid
allows a high-voltage contactor to
close momentarily, connecting the
closing solenoid to the line. The
plunger is pulled into the solenoid,
closing the recloser contacts and
Figure 6.
Phase-to-phase connection of high-voltage closing solenoid.
charging the opening springs.
Plunger movement also opens the
high-voltage contactor (Figure 7),
deenergizing the closing solenoid.
Closing operation of the recloser
mechanism activates a switch (b
contact) in the recloser, disconnecting the rotary solenoid from the
electronic control.
The closing solenoid is designed
for repeated-momentary rather than
continuous operation. If a malfunction of the solenoid plunger or the
closing-coil contactor results in the
closing solenoid energizing for an
extended period, closing-solenoid
fuses within the recloser open the
high-voltage circuit, protecting the
closing solenoid from thermal
damage.
Manual Operation
The recloser can be manually tripped
at any time by lowering the yellow
manual operating handle located in
the upper lefthand corner of the front
of the recloser tank (Figure 4). With
the handle down, the control cannot
close the recloser. Raising the handle
permits closure, provided the connected and energized control is not in the
lockout position. Similarly, the recloser
can be operated from the manual control switch on the electronic control
panel, provided the manual operating
handle is up. A red flag adjacent to the
manual operating handle provides
contact position indication.
8
Figure 7.
High-voltage closing solenoid
contactor.
285-71
Current Sensing
The recloser is provided with three
1000:1 sensing-current transformers,
providing both phase and ground
(zero sequence) currents. They are
connected to the electronic control
cabinet by means of a plug-in cable,
which can be up to 125 ft. in length,
thus permitting mounting of the control remote from the recloser.
Kyle offers a choice of two electronic controls that can be used in conjunction with PWE and PWVE
reclosers. The Form 3A Type ME
control, shown in Figure 9, is a discrete component electronic control
ELECTRONIC CONTROL
Type PWE and PWVE reclosers are
controlled by a Kyle electronic
recloser control. The control cabinet
is mounted inside the padmount
enclosure on the lefthand door
(Figure 8).
Figure 9.
Kyle Form 3A Type ME electronic
recloser control.
Figure 8.
PWE and PWVE reclosers have
Type ME electronic control cabinet mounted to the inside of the
left-hand door of the enclosure.
device. Its automatic control functions
are performed by solid-state electronic
components. Plug-in programming
components provide precise, discrete
values for operating parameters including; time-current curves, reclosing delay
intervals, and minimum trip levels.The
control provides simple selector-switch
determination of phase- and ground-trip
sequences and operations to lockout.
Operating characteristics can be quickly
and easily changed to meet new application requirements by changing the
dial settings or plug-in components,
without deenergizing the recloser.
The Form 3A control can be
equipped with a variety of accessories
that provide remote operation and monitoring for SCADA applications, indicate
faults or current conditions, modify
operating characteristics, or offer operating and service convenience to
broaden application capabilities.
Complete descriptive and ordering
information on the Form 3A control and
accessories, can be found in Catalog
280-75.
The Form 4C Type ME microprocessor-based recloser control, shown in
Figure 10, incorporates microprocessor
technology to provide enhanced versatility of application and ease of operation. All standard control operating
parameters including; phase- and
ground-fault minimum trip levels, timecurrent curve selection, and sequences
of recloser operation, are fully pro-
grammable. Simple keyboard programming is used to establish the
control’s operating settings.
Dedicated function keys and a large
LCD display permit easy programming and readout of control
settings.
The control is equipped with 38
keyboard-selectable time-current
curves, which are interchangeable
for phase and ground. Each of the
curves can be modified either vertically or with a constant time adder
to provide an almost unlimited
number of TCC selections.
Eight front panel LCD indicators
provide control and recloser status
at a glance. The control provides a
wide range of standard features
including; supervisory operation,
remote status indication, fault indication via LCD targets and counters, Fault Footprint™ event
recorder, recloser duty monitor,
demand metering, and load profile
monitor.
The microprocessor-based control
can also be equipped with an accessory supervisory input/output board
to extend the supervisory operation
capabilities of the control. For complete descriptive and ordering information on the Form 4C Type ME
microprocessor-based recloser control and accessories, refer to Catalog
Section 280-77.
Figure 10.
Kyle Form 4C microprocessorbased recloser control.
9
Types PWE and PWVE Three-Phase Reclosers
RECLOSER ACCESSORIES
Types PWE and PWVE reclosers
can be supplemented with a number
of accessories to provide added
application flexibility. Accessories are
available that modify the normal
operating functions, increase operating versatility, and provide indicating
functions. For each accessory
installed on a particular recloser, a
description plate is mounted on the
information plate of the recloser.
Where required, accessory leads
are brought out of the recloser tank
through an oiltight receptacle/plug
interface to terminal blocks for external customer connections. The terminal blocks are located on the accessory panel mounted to the inside of
the right-hand door of the enclosure.
Bushing-Type, Multi-Ratio
Current Transformers
Multi-ratio current transformers for
operating meters or separate relays
can be mounted on load-side bushings 2, 4, and 6 (Figure 11 ). These
current transformers have only one
primary turn— the bushing rod. They
are available with secondary windings that provide primary/secondarycurrent ratios of either 600:5 or
1200:5. Different ratios can be
obtained by connection to appropriate taps on their secondary windings. The ratios obtainable from
600:5 and 1200:5 transformers are
shown in Table 8.
Auxiliary Switch
Remote indication of recloser contact
position or switching of other devices
can be accomplished with an auxiliary switch. A three-stage switch is
mounted on the recloser frame
(Figure 13). Each stage or section
TABLE 8
Bushing-Type Multi-Ratio Current
Transformer Ratios and Terminal
Connections
Ratio
Ratio
Terminals
600:5
500:5
450:5
400:5
300:5
250:5
200:5
150:5
100:5
50:5
1200:5
1000:5
900:5
800:5
600:5
500:5
400:5
300:5
200:5
100:5
X1—X5
X2—X5
X3—X5
X1—X4
X2—X4
X3—X4
X4—X5
X1—X3
X1—X2
X2—X3
For ease of connection and ratio
selection, secondary taps are factory
wired to terminal blocks on the accessory panel. Wiring from meters or
relays is routed into the enclosure by
the customer and joined to two of the
five terminals on each block to obtain
the ratio desired. Two thumbscrews in
each of the blocks, positioned to short
and ground the current transformers for
shipping, are then removed and repositioned to complete electrical connection of the device (Figure 12).
Figure 13.
Three-stage auxiliary switch
accessory.
has two independent contacts a
and/or b. When the recloser’s main
contacts are open, the a contacts are
also open and the b contacts are
closed. Table 9 shows the recloser
switch contact relationship.
TABLE 9
Related Recloser/Switch Contact Positions
When recloser contacts are closed:
Auxiliary switch contacts a are closed;
auxiliary switch contacts b are open.
When recloser contacts are open:
Auxiliary switch contacts a are open;
auxiliary switch contacts b are closed.
Figure 11.
Multi-ratio current transformers are
mounted on the load-side bushings inside the recloser tank.
10
Switch contacts are insulated for
600 volts and have a continuous current rating of 10 amps. The interrupting ratings of the auxiliary switch
contacts are shown in Table 10.
Figure 12.
Terminal block for one multi-ratio
bushing current transformer
shown with thumbscrews in
grounding bar positioned to short
and ground CTs for shipping.
285-71
TABLE 10
Interrupting Ratings of Auxiliary Switch
Volts
24
48
120
125
240
250
Inductive
ac
Non-inductive
ac
Inductive
dc
Non-inductive
dc
—
—
50
—
25
_
—
—
80
—
40
_
15
7.5
—
1.5
—
0.45
20
10
—
2
—
0.5
Low-Voltage Dc Closing
With the substitution of a special dc
closing solenoid and associated
wiring, the recloser can be closed by
an externally controlled low-voltage
dc power source rather than from the
primary high-voltage source. Low
voltage is especially desirable in loop
and load-transfer schemes when the
recloser can be operated regardless
of which side of the unit is energized.
Current requirements for dc closing
are 55 amps at 125 Vdc, 30 amps at
250 Vdc.
Low-Voltage Ac Closing
With the addition of a modified closing contactor equipped with a fullwave diode bridge (Figure 14), the
dc closing solenoid can be operated
from a lowvoltage ac source. Current
requirements for ac closing are 50
amps at 120 Vac, 34 amps at 240
Vac.
Figure 15.
Closing solenoid coil contactorand-transfer-switch accessory is
mounted in recloser mechanism
in place of standard closing
solenoid contactor.
Figure 14.
Low voltage ac closing accessory.
Closing-Coil Contactorand Transfer Switch
The closing-coil contactor-and-transfer-switch accessory allows the highvoltage closing solenoid to be energized from either side of the recloser.
This accessory consists of a
mechanically operated combination
DPST closing contactor and DPDT
transfer switch, and is an alternative
to the standard closing-solenoid contactor of the recloser. It mounts in the
same position (Figure 15) and is
operated in a similar manner. No
external customer connections are
required to operate the closing - coil
contactor- and -transfer switch.
11
Types PWE and PWVE Three-Phase Reclosers
RATINGS AND SPECIFICATIONS; WEIGHTS AND OIL CAPACITY
TABLE 11
Voltage Ratings
Voltage
Type
PWE
Type
PWVE
Nominal voltage class (kV rms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rated max voltage (kV rms)
................................
Rated impulse withstand voltage (BIL; kV crest) . . . . . . . . . . . . . . . . . . .
Low-frequency withstand voltage (1 min; kV rms) . . . . . . . . . . . . . . . . . .
Dc withstand voltage (15 min; kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Partial discharge level (corona extinction at 20 pC; kV) . . . . . . . . . . . . . .
14.4
15.5
95
35
53
11
24.9
27.0
125
40
78
19
TABLE 12
Current Ratings
Voltage
Rated continuous current (amps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Max interrupting current at rated max voltage (sym amps) . . . . . . . . .
Max momentary current (asym amps) . . . . . . . . . . . . . . . . . . . . . . . . .
Rated magnetizing interrupting current (amps) . . . . . . . . . . . . . . . . . .
Rated cable-charging current (amps) . . . . . . . . . . . . . . . . . . . . . . . . . .
25
35
50
70
100
120
140
170
200
240
280
300
340
400
480
560
600
680
800
960
1120
Type
PWVE
560
12000
20000
19.6
10
560
12000
20000
19.6
25
TABLE 14
Duty Cycle
TABLE 13
Interrupting Current
MinimumTrip Current
(amps)
Type
PWE
Interrupting Current
(symmetrical amps)
Phase
—
—
—
—
3000*
3600*
4200*
5100*
6000*
7200*
8400*
9000*
10200*
12000
12000
12000
12000
12000
12000
12000
12000
Ground
3000*
4200*
6000*
8400*
12000
12000
12000
12000
12000
12000
12000
—
12000
12000
12000
12000
12000
12000
12000
12000
12000
% of
Number of Operations
Interrupting X/R
Type
Type
Rating
Ratio
PWE
PWVE
15—20
45—55
90—100
4
8
15
88
112
32
44
56
16
Totals:
232
116
TABLE 15
Mechanical Specifications
Mechanical life (minimum operations) . . . . . . . . . . . . . . . . . . . . . . . . .
Operating temperature limits (°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Close mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Open mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact close time (cycles) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact open time (cycles) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interrupting time (cycles) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable contact erosion (in. ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE 16
Weights and Oil Capacity
* A protective accessory available on the Type ME electronic
control extends the interrupting capacity to the maximum
rating.
Type
PWE and PWVE
12
2500
-30 to +50
Solenoid operated
Spring operated
0 75
0.50
1.50
0.125
52-in. Enclosure
1495
Weight With Oil (lb)
62-1/4.-in. Enclosure
1520
Oil Capacity
(gal)
95
285-71
DIMENSIONAL INFORMATION
Figure 16.
Dimensions of Types PWE and PWVE reclosers.
Figure 17.
Mounting dimensions of PWE and PWVE reclosers.
13
Kyle® is a registered trademark of Cooper Industries, Inc.
P.O. Box 1640
Waukesha, WI 53187